đŸ”„ 6M $BTC sit behind exposed public keys, and Google just cut quantum errors 40x. So is Bitcoin’s Q-Day closer than we think? Not yet, but the clock moved. Google’s Willow chip cut errors 40x on “magic states,” a key quantum bottleneck, in a paper published Oct 15. That doesn’t make an attack 40x cheaper, and no machine can crack Bitcoin today. The exposure is real, though. Glassnode counts 6.04M BTC, or 30.2% of supply ($494B), in addresses with visible public keys, including 1.1M BTC tied to Satoshi. Google’s March estimate says fewer than 500,000 physical qubits could break the cryptography. The new Quantum Alliance of nine firms points to March 2028 as the earliest possible window. Coinbase, which holds about 5% of all $BTC ,urged developers on Oct 13 to start migrating now, backing BIP-360. The hard part isn’t the tech. It’s governance: freeze, burn, or leave old coins alone. The price is shrugging, but the fix takes years. #BTC Price Analysis# #Altcoin Season# #Macro Insights#